Mixtures of sulfo-containing 1:2 metal complexes with vinyl polymers

US5910623A · kind A · utility

Assignee

• BASF SE

Inventors

• Knut Kessel · Mannheim, DE
• Manfred Patsch · Monsheim, DE
• Manfred Herrmann
• Kurt Reiner · Speyer, DE
• Jorg Jessen · Speyer, DE
• Matthias Wiesenfeldt · Mutterstadt, DE

Key dates

• Filing date: Aug 13, 1997
• Grant date: Jun 8, 1999
• Expiry date: Aug 13, 2017

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D06P3/3206
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

Liquid or solid mixtures of low-salt sulfo-containing 1:2 metal complex dyes and poly-N-vinylpyrrolidone or copolymers of N-vinylpyrrolidone and vinyl acetate are especially useful for dyeing paper and wood and also for dyeing and finishing leather and fur.